Metallic car door



Oct. 30; 1928. 1,689,472

A. s. BARROWS METALLIC CAR DOOR Filed 001?. 1, 1925 IL ooooooooooo ZJ 421a ziifiamowaz if? i Patented Oct. 30, 1928.

UNITED STATES PATENT OF M S. BABBOWS, 011 LOS ANGELES, CALIFORNIA, ASSIGNOR TO THE YOUNGSTOWN 1,689,472 FICE.

STEEL DOOR COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

METALLIC can noon.

Application filed October 1,' 1925. Serial No. 59,753.

This invention relates to improvements in metallic car doors.

An object of the invention is to provide a fabricated car door structure made up of sheet metal having a reinforced edge arrangement afi'ording strength, durability, and simpllcity in construction, this application being a continuation in part of my prior application .8. N. 486,808, filed May 8, 1919, now Patent 1,560,526, granted November 10, 1925.

More specifically the purpose of the invention contemplated herein is to provide a metal door comprising a main bod portion preferably made up of reinforced s eet metal panels having strengthening corrugations along the outer edges of the panels and marginal extentensions beyond said corrugations, together with rigid reinforcing elements fixed to the door and arranged between the edge extremities of the door and the edge corrugations to provide an edge construction of great strength and rigidity.

Other objects of the invention will more clearly appear from the description and claims hereinafter following.

Figure 1 is a front elevational view of a car door made up in accordance with my invention. Figure 2 is a vertical, sectional view of the door on the line 22 of Figure 1, showing the adaptability of the bottom edge of the door for cooperation with mounting rollers; and Figure 3 is a horizontal, sectional view of the door construction on the line 33 of Figure 1..

The invention contemplates the provision of a metallic door of the usual rectangular form, and which comprises a main body portion madeup of a plurality of metallic panels 5, 6 and 7, said panels having their adjacent, horizontal edges overlapped and rigidly con nected by welding, or by rivets, as indicated at 8. Each of the panels is made of relative ly thin sheet metal and in order to reduce this thickness to a minimum consistent With the necessary strength, each panel is provided I with strengthening indentations, in this instance being shown as horizontally disposed corrugations, indicated at 9, though in certain instances in conjunction with the edge construction of the door as hereinafter described, it might be desirable to employiother means of bracing the portions of the panels inwardly of the edge constructionby dishing the same,

art.

strip being fixedly secured or employing similar expedients known in the In conjunction with a door of this character, the edge construction is of great importance, due to the concentration of strains thereon and the necessity for bracing the door as a whole against warping and stresses in various directions. construction, the main body portion of the door, comprising the fabricated panels 5, 6 and 7. is provided with a vertical corrugation 10 adjacent its forward edge, the material of the body portion extending outwardly of the corrugations 10 to provide a marginal section 11, the marginal section 11 at its outer extremity being turned outwardly in a direction substantially normal to the main plane of the door, to provide aflange 12. The vertical corrugation 10 at its upper and lower extremities preferably merges with the uppermost and lowermost horizontal corrugations 13 and 1.4, and the remainder of the horizontal corrugations preferably merge with the vertical corrugation 10 between its upper and lower limits, as shown. The main body portion at the top and bottom also extends beyond the corrugations 13 and 14 to provide marginal sections 15 and 16, said sections having formed thereon out-turned flanges 17 and 18. The rear edge construction of the door is similar to the forward edge construction thus far described, and includes a vertical corrugation 19 merging at its top and bottom with the horizontal corrugations 13 and 14, and the remainder of the horizontal corrugations 9 merging with the vertical corrugation intermediate its ends. The main body portion of the door is extended outwardly of the corrugation 19 to provide the marginal section 20, the outer end of which is turned outwardly to provide the flange 21, it being noted that the horizontal flanges 17 and 18 extend from side to side of the door, while the flanges 12 and 21 are disposed between and terminate on the inner sides of the flanges 17 and 18, as shown.

Secured to one side of the main body portion of the door, at the front edge thereof, is a reinforcing strip 22, the inner edge of said to the main body suitable securing or rivets, as indicated portion of the door by means, such as welding,

' at 23. The strip- 22 is of such character as to span the mouth of the corrugation to close the same, said strip extending outwardly beyond said corrugation and being secured b' welding or riveting, as indicated at 23, to t e marginal section 11, said strip further extending arranged along a suitable distance beyond the out-turned flange 12 to provide the portion 25. The top, bottom and rear edges of the door are provided with strips 26 which span the corrugations 13, 14 and 19, and are secured to the main body portion in a manner identical with that described in connection with the strip 22. In order to complete the edge construction of the door and render the same of great strength and rigidity, an angular member is each edge of the door, the

angular member at the front edge of the door being in the form of an angle bar 27, one flange 28 of which is secured to the portion of the strip 22, as indicated at 29, and the other flange of said angle bar extending substantially normal to themain plane of the door and secured to the out-turned flange 21 by welding, or by rivets, as indicated at 30. The top, bottom and rear edges of the door are likewise provided with angle bars 31, 32 and 33, each of said an le bars being connected with the flanges 1%, 18 and 21 formed on the main body portion, and with the strips 26, in a manner identical to that described in connection with the forward edge of the door. At the corners of the door, the angle bars and strips may be connected together by suitable means as by'welding. In connection with the bottom angle bar, it should be noted thatthe same provides a track adapted for co-operation with rollers mounted on the car structure when the door is ofthe so-called bottom hung ype.

By the above described arrangement it will be appreciated that a sheet metal door is provided which has a plurality of plies of material formin the reinforced edges, the main door portion orming one of said plies of ma terial and having a strengthening corrugation therein,-together with a reinforcing strip spanning the corrugation, and an angle'bar connected to the reinforcing stripand to the main body portion, thereby providing a reinforced, fabricated edge construction of exceptional' strength and rigidity.

While I have herein shown and described what I now consider the preferred manner of carrying out my invention, the same is merely illustrative, and I contemplate all changes and modifications that come within the scope of the claims appended hereto.

- I claim:

1. A sheet metal car door having a door edge construction, comprising a plurality of plies of material of greater number than the main body portion of the door, said plies forming the edge construction of the door and including the said plies, one of said plies of material being provided with a corrugation spaced inwardly from the edge of the door and extending along said door adjacent said edge; and a reinforcing edge member of angular formation secured to the door along that portion located main body portion as one of.

outwardly of said corrugation and extending substantially parallel with said corrugation, said angular member having an angular portion extending outwardly substantially at right angles to the main body ortion o the door, and another angular portion secured to 3nd lying flatwise against the face of the oor.

2. A sheet metal car door having a plurality of plies of'material forming a reinforced edge construction, said plies of material including the main door portion and a reinforcing strip secured thereto, one of said plies of material being provided with a corrugation extendin to a side of the main plane of the door, sai corrugation being arranged inwardly of the door edge and the ply of material in which said corrugation is'formed extending outwardly thereof, and another ply of material spanning said corrugation and extending outwardly thereof; and an angular bar secured to the door edge outwardly of parallel with said corrugation between the same and the extremity of the door edge.

3. A sheet metal car door having a plurality of plies of material forming a door edge, said lies of material including the main doorportion and a reinforcing strip, one of said plies being formed with a corrugation, and another of said plies being arranged to span said corrugation, the material of said pliesextending outwardly of said corrugation to provide a multi le thickness, said strip havin its inner edge xedly secured to the main bo y portion inwardly of the corrugation; and an angle bar disposed outwardly of said corrugation and having one flange extending substantially normal to the main plane of the door, said latter flange being dis osed rearwardly of the extremit of the a 1acent edge portion and outward y of said corrugation, said anglebar and said plurality of plies of material being rigidl connected together. 1

4. sheet metal car door having a plurality of plies of material formin one edge construction, said plies of materlal including the main door portion, and a reinforcingv strip along its edge; and an angle bar extending along the ed e of said door, and having one flange lying atwise against the edge of said door, and the other flange extending substantially normal to the main plane of the door, said angle bar and said plurality of plies of material being rigidly secured together.

5. A sheet metal door made up of a plurality of metallic panels having adjacent edges rigidly secured together to provide the main door portion; a reinforced edge construction for said door comprising a plurality of plies of material including free ed e portions of said panels, one of said plies 0 material having a corrugation therein spaced inwardly from the edge of the door, the material of said ply being extended outwardly beyond said corrugation, and another ply of material being arranged to span said corrugation, and extending outwardly beyond the same, and an angular member disposed along the door edge outwardly of said corrugation and having an angular portion extending substantially normal to the main plane of the door, said plies of material and said angle bar being rigidly secured together.

6. A sheet metal door comprising a main body portion, and a plurality of plies of material providing a reinforced edge construction for said door, said plies of material including the main door portion and a reinforcing strip secured thereto, one of said plies of material being provided with a corrugation and another of said plies being arranged to span said corrugation, the material of said first men tioned ply extending outwardly of said corrugation, and being turned in a direction substantially normal to the main plane of the door to form a flange, the second mentioned ply of material extending outwardly beyond said turned portion and being connected with said first mentioned ply of material; and an angular memberhaving one angular portion lying against the out-turned flange on said first ply of material, and having another angular portion lying against the-extension on said second ply, said plurality of pliesof ma-.

terial and said angular member being rigidly secured together.

7. In a car door, the combination with a plurality of sheet metal panels united at their meeting edges, said panels, along one edge of the door, being provided with integral flange sections extended substantially perpendicular to the plane of the panel sheets; of a member angular in cross-section, said member having one section thereof secured to said integral flanges of the panel sheets'and another section extended in a plane substantially parallel with the main plane of the sheets; and additional means for rigidifying the united structure of said member and panel sheet flanges.

8. A railway car door adapted for support along its bottom edge, said door including a main body portion comprised of sheet metal,

the latter being integrally flanged along one vertical edge; a member of angular cross section secured to said vertical edge and having one section thereof secured to the sheet metal flange and another section extended in a plane parallel to the main plane of the sheet metal; and an angle bar secured to the bottom edge of the sheet metal main portion, one flange of said angle bar extending horizontally and 1 adapted to cooperate with supporting means for the 'door.

In witness that I claim the foregoing I have hereunto subscribed my name this 23rd day of September, 1925.

' ALLAN S. BARROWS' 

